Transmitter/receiver, transmission/reception device, and transmission/reception method

Abstract

A transmitter/receiver that includes a spherical radio wave lens in which a meta-surface converging a desired radio wave which is a transmitting/receiving target is formed and a plurality of array antennas that are arranged to face the spherical radio wave lens, and include antenna units that transmit and receive the desired radio wave which is the transmitting/receiving target and are arranged in accordance with focal positions of the spherical radio wave lens.

What is claimed is: 
     
         1 . A transmitter/receiver comprising:
 a spherical radio wave lens in which a meta-surface converging a desired radio wave which is a transmitting/receiving target is formed; and   a plurality of array antennas that are arranged to face the spherical radio wave lens, and include antenna units that transmit and receive the desired radio wave which is the transmitting/receiving target and are arranged in accordance with focal positions of the spherical radio wave lens.   
     
     
         2 . The transmitter/receiver according to  claim 1 , wherein
 the spherical radio wave lens includes   a spherical support through which the desired radio wave passes, and   a meta-surface portion including the meta-surface in which structures smaller than a wavelength of the desired radio wave are periodically arranged on a surface.   
     
     
         3 . The transmitter/receiver according to  claim 1 , wherein
 the array antenna has a spherical shell shape in which a plurality of antenna units are arranged on a concave surface, and the concave surface is arranged to face the spherical radio wave lens.   
     
     
         4 . The transmitter/receiver according to  claim 3 , wherein
 the plurality of antenna units are arranged in an arc form on the concave surface of the array antenna.   
     
     
         5 . The transmitter/receiver according to  claim 3 , wherein
 the plurality of antenna units are arranged in a mesh form on the concave surface of the array antenna.   
     
     
         6 . The transmitter/receiver according to  claim 1 , wherein
 the spherical radio wave lens is configured to converge the desired radio wave arriving from the same direction toward a single antenna unit.   
     
     
         7 . The transmitter/receiver according to  claim 1 , wherein
 the spherical radio wave lens is configured to converge the desired radio wave arriving from the same direction toward at least two antenna units.   
     
     
         8 . A transmission/reception device comprising:
 the transmitter/receiver according to  claim 1 ; and   a transmitting/receiving circuit configured to acquire a reception signal associated with a radio wave received by the transmitter/receiver, decode and output the acquired reception signal, acquire a transmission signal directed toward a communication target, and output the acquired transmission signal to an antenna unit configured to transmit the acquired transmission signal toward the communication target.   
     
     
         9 . The transmission/reception device according to  claim 8 , wherein
 the transmitting/receiving circuit is configured to   perform transmission and reception of the desired radio wave with the same communication target in a time division manner by using the same antenna unit.   
     
     
         10 . A transmission/reception method executed by a computer by using a transmitter/receiver including a spherical radio wave lens in which a meta-surface converging a desired radio wave which is a transmitting/receiving target is formed and an array antenna that is arranged to face the spherical radio wave lens, and includes antenna units that transmit and receive the desired radio wave which is the transmitting/receiving target and are arranged in accordance with focal positions of the spherical radio wave lens, the method comprising:
 acquiring a reception signal associated with a radio wave received by the transmitter/receiver;   decoding and outputting the acquired reception signal;   acquiring a transmission signal directed toward a communication target; and   outputting the acquired transmission signal to an antenna unit configured to transmit the acquired transmission signal toward the communication target.